subject
Mathematics, 22.04.2021 09:20 robertjoy19

在古代,紙扇除了能搞去暑意,文 人雅士還喜歡在上面作畫、題詩,
因此它也是裝飾品、藝術品。
以數學的觀點,可用黃金比值設計
一把最富美感的扇子。如右圖,
剩餘圖形B面積對扇形A面積的
比比值,如果是黃金比值1.618,則
扇形A就是最富美感的黃金紙扇。
看圖回答下面問題:

已知上圖圓的半徑10公分,完成下表:​


在古代,紙扇除了能搞去暑意,文

人雅士還喜歡在上面作畫、題詩,因此它也是裝飾品、藝術品。以數學的觀點,可用黃金比值設計一把最富美感的扇子。如右圖,剩餘圖形B面積對扇形A面積的比比值,如果是黃金比

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 19:00
Rena is building a 1: 180 scale model of a real castle. her model has a rectangular base that is 3 feet wide and 4 feet long what is the area of the base of the actual castle in square feet
Answers: 2
question
Mathematics, 21.06.2019 22:30
Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.
Answers: 2
question
Mathematics, 21.06.2019 23:00
Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.
Answers: 1
question
Mathematics, 22.06.2019 02:30
Alex buys a home for $276,400. his home is predicted to increase in value 3.5% each year. what is the predicted value of alex’s home in 25 years? a. 621,357 b. 635,191 c. 653,201 d. 673,415
Answers: 1
You know the right answer?
在古代,紙扇除了能搞去暑意,文 人雅士還喜歡在上面作畫、題詩,
因此它也是裝飾品、藝術品。
以數學的觀點,可用黃金比值設計
一把最富美感的扇子。如右圖,
...
Questions
question
History, 09.04.2021 21:50
question
Computers and Technology, 09.04.2021 21:50
question
Mathematics, 09.04.2021 21:50
question
Mathematics, 09.04.2021 21:50
question
Mathematics, 09.04.2021 21:50
question
Mathematics, 09.04.2021 22:00
Questions on the website: 13722367